Insulated glass construction and method of making same

Abstract

The specification discloses an improved insulated glass construction preventing relative slippage beween the hermetically sealed glass sheets. The construction conventionally includes a pair of glass sheets and a spacer frame positioned therebetween and sealed thereto. The spacer frame is recessed from the glass edges. An adhesive fills the recess preferably at discrete locations to bond the glass sheets together.

We claim: 
     
       1. An insulated glass panel comprising: a pair of rectangular transparent sheets each having an edge;   a spacer means for spacing said sheets a substantially uniform distance from one another, said spacer means being recessed from said edges to form a recess between said spacer means and said edges;   a sealant between said spacer means and each of said sheets to hermetically seal said spacer means to said sheets; and   an adhesive means between said sheets for adhesively bonding said sheets to one another, said adhesive means located within said recess and contacting said transparent sheets and said spacer means, said adhesive means arranged in discontinuous segments along said spacer means, the bond provided by said adhesive means being relatively stronger than the bond provided by said sealant, whereby said adhesive means provides enhanced structural integrity.   
     
     
       2. An insulated window assembly as defined in claim 1 wherein said adhesive means comprises a hot-melt adhesive. 
     
     
       3. An insulated window assembly as defined in claim 1 wherein said sealant is a butyl sealant, and said adhesive means is a polyester or polyamide adhesive. 
     
     
       4. An insulated transparent assembly comprising: a pair of transparent panels each having a peripheral edge;   spacer means between said panels for spacing said panels from one another, said spacer means being offset from a portion of said panel edges to define a recess;   sealant means between said spacer means and each of said panels for hermetically sealing said panels to said spacer means; and   adhesive means within said recess between said panels for adhesively intersecuring said panels to one another, said adhesive engaging said spacer means and both of said panels, said adhesive means arranged in discontinuous segments along said peripheral edges, said adhesive means providing a relatively stronger bond than said sealant means so that said adhesive means enhances the structural integrity of said assembly.   
     
     
       5. An insulated glass assembly as defined in claim 4 wherein said panel edge portion includes only two nonlinearly aligned edge segments. 
     
     
       6. An insulated glass assembly as defined in claim 4 wherein said adhesive means comprises a hot-melt adhesive. 
     
     
       7. An insulated transparent assembly as defined in claim 4 wherein said sealant means is a butyl sealant, and said adhesive means is a polyester or polyamide adhesive.